package operation;

import book.Book;
import book.BookList;

import java.util.Scanner;

public class DelOperation implements IOPeration{
    @Override
    public void work(BookList bookList) {
        System.out.println("删除图书");
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入书名");
        String name=scanner.nextLine();
        //有几本书
        int currentSize=bookList.getUsedsize();
        int index=-1;
        for (int i = 0; i <currentSize ; i++) {
            Book book=bookList.getBook(i);
            if (book.getName().equals(name)){
                index=i;
            break;}
        }
        if (index==-1){
            System.out.println("没有你想要的书");
            return;
        }
        for (int i = 0; i <currentSize-1; i++) {
            Book book1=bookList.getBook(i+1);
            bookList.setBooks(i,book1);

        }
        //删去某本书可以这么干
        bookList.setUsedsize(currentSize-1);
    }
}
